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Individual Calculations July 2013 |
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| Vigorito, David Total change: -2.70 | |   |
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| 82nd Massachusetts Open | Marlboro, Massachusetts | USA | 2013-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2330 | 2429 | 3.50 | 6 | -0.27 | 10 | -2.70 | |
|  Curdo, John A | f | | 2231 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | |  Rueda, Libardo | | | 2167 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Rizzitano, James A | m | | 2307 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Yedidia, Jonathan | m | | 2389 | USA | 1.00 | 1 | 0.44 | 10 | 4.40 | | | Ivanov, Alexander | g | | 2529 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Perez, Robert M | | | 2359 | USA | 0.00 | 1 | -0.60 | 10 | -6.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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